J_J

Would there be any problems? I'm planning on buying a 93 Cali ECU and putting it in my 94 FD. I did a quick search and found that the 94 ECU is the same as the 93 Cali ECU (EGR).

When I put a Pettit ECU in my Cali car I noticed the check engine light came on...but I added some other mods so I don't know if it was the sole cause. Would the CEL come on again with the 93 Cali ECU in my 94?

DaleClark

iTrader: (55)

Did you check to find out what engine code you were getting?

The only difference with the cali and non-cali ECU's is checking the EGR valve - there's a circuit that checks that the EGR valve moved when it was told to move. Supposedly you can blockoff the EGR valve and put a '93 non-cali ECU in the car and have no worries.

But, if you plugged a '93 ECU into a '94 car with the EGR switch, the ECU may have been upset that the EGR switch was actually plugged in and working - on federal '93s the plug is loose and not plugged in to anything.

What are you trying to accomplish by swapping ECUs around?

Dale